Search results for "Porti"
showing 10 items of 2689 documents
Comparison between bitumen modified with crumb tyre rubber and styrene butadiene styrene
2009
The improvements in terms of mechanical properties due to the use of polymers to modify bitumens in road paving applications have already been widely demonstrated. The aim of this paper is to show how the rheology and the performance of a bituminous binder mixed with crumb rubber recycled from used tyres (CR-MB), could be comparable with a styrene butadiene styrene (SBS-MB) created with the same base binder and currently used for road applications. Physical, chemical and performance characterization followed by rheological and storage stability analyses have been undertaken as the basis for the comparison. The results of the investigation indicate that the blended CR-MB shows large improvem…
Analytical approach for the mix design optimisation of bituminous mixtures with crumb rubber
2018
The present paper provides a basis for defining a mix design method specifically tailored to rubberised asphalt that takes into account the behaviour of crumb rubber. An analytical approach to quantifying the recovered deformation of crumb rubber in the post-compaction phase has been developed in order to adjust the number of gyrations proposed by the Superpave method for compacting specimens of hot mix asphalt using a Superpave gyratory compactor. The maximum allowable amount of rubber has been calculated. Finally, a step-by-step protocol has been proposed in order to fabricate and compact crumb rubber modified mixtures with the gyratory compactor.
Increased Stability of Rubber-Modified Asphalt Mixtures to Swelling, Expansion and Rebound Effect during Post-Compaction
2017
The application of bituminous mixtures modified with rubber from scrap-tires require attention and care during mixing and compaction. Rubber modifies the properties because it reacts in the internal structure of bitumen at high temperatures changing the performance of the mixture (interaction process of solvents with binder-rubber aggregate). The main change is the increasing of the viscosity and elasticity of the binder due to the larger sizes of the rubber particles by dry process but, this positive effect is counteracted by short mixing times, compared to wet technology, and due to the transport processes, curing time and post-compaction of the mixtures. Therefore, negative effects as sw…
Cautionnement. Société emprunteuse en liquidation judiciaire. Demande d'annulation du cautionnement sur le fondement du code de la consommation, et d…
2019
International audience; (Com. 21 nov. 2018, n° 16-25.128, arrêt n° 990, FS-P+B, M. Sylvain B. c/ Sté Banque Tarneaud, D. 2018. 2356 ; AJ Contrat 2019. 43, obs. D. Houtcieff ; RTD civ. 2019. 152, obs. P. Crocq ; ibid. 153, obs. P. Crocq ; BJS 2019. 45, note M. Séjean ; Gaz. Pal. 16 avr. 2019, p. 79, J. Lasserre Capdeville)
III Foro de Cultura y Naturaleza. Dossier de prensa
2000
Es un dossier de prensa con varios artículos de distintos diarios sobre el "III Foro de Cultura y Naturaleza", coordinado por José Vidal-Beneyto y celebrado en Santander del 14 al 16 de septiembre del 2000. Se incluye una entrevista a Vidal-Beneyto realizada por Javier Sakona y publicada en "La Realidad", en su edición del 25 de septiembre al 1 de octubre del 2000.
Critical factors influencing international sporting success of the Philippines : the athletes' perspective
2017
The aim of this study is to contribute to the understanding of the recent declining performance of the Philippines in international sporting competitions by identifying and evaluating relevant factors that are critical to its international success through the perspective of the national elite athletes. An evaluation of the organizational effectiveness of the national sports governing bodies provides explanation to the poor performance of the country in major international competitions such as the Southeast Asian (SEA)Games. One of the most recent approaches used in measuring organizational effectiveness is the Sport Policy factors Leading to International Sporting Success (SPLISS) model. Th…
“Not Only for a Celebration of Competitive Overwatch but Also for National Pride”: Sportificating the Overwatch World Cup 2016
2020
While the most popular forms of organized competitive digital gaming, also known as eSports, have begun finding their place within and in relation to both mainstream entertainment culture and the field of traditional sports, their history is one of struggling to be accepted as “true sports.” Partly because of this history, great effort has been put into the sportification of eSports by presenting competitions in familiar ways adapted from traditional sports. In this article, we examine the process of sportification of eSports in the context of tournament broadcasts. We analyze the Overwatch World Cup 2016 tournament, comparing its final broadcast to the 2014 FIFA World Cup’s final broadcast…
3D survey and modelling of the main portico of the Cathedral of Monreale
2018
3D survey and modelling of Cultural Heritage allow to store a great deal of 3D data that can be managed for different purposes. 3D models can be used for documentation, restoration and knowledge of historic architectures and monuments. In this work, a 3D survey of the main portico of the Cathedral of Monreale (Palermo, Italy) was carried out. The paper presents the data acquisition process and the 3D modelling phase. The work is aimed to reconstruct a 3D model that could be used also to set up an HBIM (Heritage or Historic Building Information Modelling) of the main portico. The result of this study could be considered as a first test to implement an HBIM platform for the whole monumental c…
Influence of Pore-Volume Topology of Zeolite ITQ-7 in Alkylation and Isomerization of Aromatic Compounds
2002
The void structure of zeolite ITQ-7 (ISV structure) is discussed on the basis of catalytic reaction tests. The isomerization and disproportionation of meta-xylene, and the alkylation of benzene or toluene with either ethanol or isopropanol, on the acidic zeolite have been used as model reactions. The dimensions of its three-dimensional system of channels, with pores between 6.1 and 6.3 A and with lower tortuosity than those of beta zeolite, favor higher ratios of isomerization to disproportionation of meta-xylene, and of mono- to dialkylated products and iso- to n-propylbenzene during alkylation of benzene. These effects are enhanced with a partially coked ITQ-7.
The importance of physical education and health to be a core subject: Arguments and postures concerning the curricular modifications in Chile
2021
This study is focused on the declarations made by different Chilean institutions regarding the modifications affecting the subject Physical Education and Health (PEH), which were approved by the National Education Council. Purpose: The main aim was to analyse the speech generated and gather data around the curricular modifications in the 3rd and 4th course of the middle education in 2020, specifically the choice of leaving the subject PEH as an elective subject. Design: A qualitative, pragma-dialectic approach was used, focusing on the point of view and main arguments of the institutions on the topic. Results: 23 declarations were reviewed, pertaining 6 to health institutions, 12 to educati…